2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 * This is an emulation of the GLX API which allows Mesa/GLX-based programs
28 * to run on X servers which do not have the real GLX extension.
30 * Thanks to the contributors:
32 * Initial version: Philip Brown (phil@bolthole.com)
33 * Better glXGetConfig() support: Armin Liebchen (liebchen@asylum.cs.utah.edu)
34 * Further visual-handling refinements: Wolfram Gloger
35 * (wmglo@Dent.MED.Uni-Muenchen.DE).
38 * Don't be fooled, stereo isn't supported yet.
43 #include "glxheader.h"
54 #include "state_tracker/st_context.h"
55 #include "state_tracker/st_public.h"
59 #define _mesa_sprintf sprintf
62 /* This indicates the client-side GLX API and GLX encoder version. */
63 #define CLIENT_MAJOR_VERSION 1
64 #define CLIENT_MINOR_VERSION 4 /* but don't have 1.3's pbuffers, etc yet */
66 /* This indicates the server-side GLX decoder version.
67 * GLX 1.4 indicates OpenGL 1.3 support
69 #define SERVER_MAJOR_VERSION 1
70 #define SERVER_MINOR_VERSION 4
72 /* This is appended onto the glXGetClient/ServerString version strings. */
73 #define MESA_GLX_VERSION "Mesa " MESA_VERSION_STRING
75 /* Who implemented this GLX? */
76 #define VENDOR "Brian Paul"
79 "GLX_MESA_set_3dfx_mode " \
80 "GLX_MESA_copy_sub_buffer " \
81 "GLX_MESA_pixmap_colormap " \
82 "GLX_MESA_release_buffers " \
83 "GLX_ARB_get_proc_address " \
84 "GLX_EXT_texture_from_pixmap " \
85 "GLX_EXT_visual_info " \
86 "GLX_EXT_visual_rating " \
87 /*"GLX_SGI_video_sync "*/ \
88 "GLX_SGIX_fbconfig " \
92 * Our fake GLX context will contain a "real" GLX context and an XMesa context.
94 * Note that a pointer to a __GLXcontext is a pointer to a fake_glx_context,
97 * We really just need this structure in order to make the libGL functions
98 * glXGetCurrentContext(), glXGetCurrentDrawable() and glXGetCurrentDisplay()
101 struct fake_glx_context
{
102 __GLXcontext glxContext
; /* this MUST be first! */
103 XMesaContext xmesaContext
;
108 /**********************************************************************/
109 /*** GLX Visual Code ***/
110 /**********************************************************************/
115 static XMesaVisual
*VisualTable
= NULL
;
116 static int NumVisuals
= 0;
120 * This struct and some code fragments borrowed
121 * from Mark Kilgard's GLUT library.
123 typedef struct _OverlayInfo
{
124 /* Avoid 64-bit portability problems by being careful to use
125 longs due to the way XGetWindowProperty is specified. Note
126 that these parameters are passed as CARD32s over X
128 unsigned long overlay_visual
;
129 long transparent_type
;
136 /* Macro to handle c_class vs class field name in XVisualInfo struct */
137 #if defined(__cplusplus) || defined(c_plusplus)
138 #define CLASS c_class
146 * Test if the given XVisualInfo is usable for Mesa rendering.
149 is_usable_visual( XVisualInfo
*vinfo
)
151 switch (vinfo
->CLASS
) {
154 /* Any StaticGray/GrayScale visual works in RGB or CI mode */
158 /* Any StaticColor/PseudoColor visual of at least 4 bits */
159 if (vinfo
->depth
>=4) {
167 /* Any depth of TrueColor or DirectColor works in RGB mode */
170 /* This should never happen */
178 * Get an array OverlayInfo records for specified screen.
179 * \param dpy the display
180 * \param screen screen number
181 * \param numOverlays returns numver of OverlayInfo records
182 * \return pointer to OverlayInfo array, free with XFree()
185 GetOverlayInfo(Display
*dpy
, int screen
, int *numOverlays
)
187 Atom overlayVisualsAtom
;
190 unsigned char *ovInfo
;
191 unsigned long sizeData
, bytesLeft
;
195 * The SERVER_OVERLAY_VISUALS property on the root window contains
196 * a list of overlay visuals. Get that list now.
198 overlayVisualsAtom
= XInternAtom(dpy
,"SERVER_OVERLAY_VISUALS", True
);
199 if (overlayVisualsAtom
== None
) {
203 status
= XGetWindowProperty(dpy
, RootWindow(dpy
, screen
),
204 overlayVisualsAtom
, 0L, (long) 10000, False
,
205 overlayVisualsAtom
, &actualType
, &actualFormat
,
206 &sizeData
, &bytesLeft
,
209 if (status
!= Success
|| actualType
!= overlayVisualsAtom
||
210 actualFormat
!= 32 || sizeData
< 4) {
211 /* something went wrong */
212 XFree((void *) ovInfo
);
217 *numOverlays
= sizeData
/ 4;
218 return (OverlayInfo
*) ovInfo
;
224 * Return the level (overlay, normal, underlay) of a given XVisualInfo.
225 * Input: dpy - the X display
226 * vinfo - the XVisualInfo to test
227 * Return: level of the visual:
229 * >0 = overlay planes
230 * <0 = underlay planes
233 level_of_visual( Display
*dpy
, XVisualInfo
*vinfo
)
235 OverlayInfo
*overlay_info
;
236 int numOverlaysPerScreen
, i
;
238 overlay_info
= GetOverlayInfo(dpy
, vinfo
->screen
, &numOverlaysPerScreen
);
243 /* search the overlay visual list for the visual ID of interest */
244 for (i
= 0; i
< numOverlaysPerScreen
; i
++) {
245 const OverlayInfo
*ov
= overlay_info
+ i
;
246 if (ov
->overlay_visual
== vinfo
->visualid
) {
247 /* found the visual */
248 if (/*ov->transparent_type==1 &&*/ ov
->layer
!=0) {
249 int level
= ov
->layer
;
250 XFree((void *) overlay_info
);
254 XFree((void *) overlay_info
);
260 /* The visual ID was not found in the overlay list. */
261 XFree((void *) overlay_info
);
269 * Given an XVisualInfo and RGB, Double, and Depth buffer flags, save the
270 * configuration in our list of GLX visuals.
273 save_glx_visual( Display
*dpy
, XVisualInfo
*vinfo
,
274 GLboolean rgbFlag
, GLboolean alphaFlag
, GLboolean dbFlag
,
275 GLboolean stereoFlag
,
276 GLint depth_size
, GLint stencil_size
,
277 GLint accumRedSize
, GLint accumGreenSize
,
278 GLint accumBlueSize
, GLint accumAlphaSize
,
279 GLint level
, GLint numAuxBuffers
)
281 GLboolean ximageFlag
= GL_TRUE
;
284 GLboolean comparePointers
;
287 /* Check if the MESA_BACK_BUFFER env var is set */
288 char *backbuffer
= _mesa_getenv("MESA_BACK_BUFFER");
290 if (backbuffer
[0]=='p' || backbuffer
[0]=='P') {
291 ximageFlag
= GL_FALSE
;
293 else if (backbuffer
[0]=='x' || backbuffer
[0]=='X') {
294 ximageFlag
= GL_TRUE
;
297 _mesa_warning(NULL
, "Mesa: invalid value for MESA_BACK_BUFFER environment variable, using an XImage.");
303 /* stereo not supported */
307 /* Comparing IDs uses less memory but sometimes fails. */
308 /* XXX revisit this after 3.0 is finished. */
309 if (_mesa_getenv("MESA_GLX_VISUAL_HACK"))
310 comparePointers
= GL_TRUE
;
312 comparePointers
= GL_FALSE
;
314 /* Force the visual to have an alpha channel */
315 if (rgbFlag
&& _mesa_getenv("MESA_GLX_FORCE_ALPHA"))
318 /* First check if a matching visual is already in the list */
319 for (i
=0; i
<NumVisuals
; i
++) {
320 XMesaVisual v
= VisualTable
[i
];
321 if (v
->display
== dpy
322 && v
->mesa_visual
.level
== level
323 && v
->mesa_visual
.numAuxBuffers
== numAuxBuffers
324 && v
->ximage_flag
== ximageFlag
325 && v
->mesa_visual
.rgbMode
== rgbFlag
326 && v
->mesa_visual
.doubleBufferMode
== dbFlag
327 && v
->mesa_visual
.stereoMode
== stereoFlag
328 && (v
->mesa_visual
.alphaBits
> 0) == alphaFlag
329 && (v
->mesa_visual
.depthBits
>= depth_size
|| depth_size
== 0)
330 && (v
->mesa_visual
.stencilBits
>= stencil_size
|| stencil_size
== 0)
331 && (v
->mesa_visual
.accumRedBits
>= accumRedSize
|| accumRedSize
== 0)
332 && (v
->mesa_visual
.accumGreenBits
>= accumGreenSize
|| accumGreenSize
== 0)
333 && (v
->mesa_visual
.accumBlueBits
>= accumBlueSize
|| accumBlueSize
== 0)
334 && (v
->mesa_visual
.accumAlphaBits
>= accumAlphaSize
|| accumAlphaSize
== 0)) {
335 /* now either compare XVisualInfo pointers or visual IDs */
336 if ((!comparePointers
&& v
->visinfo
->visualid
== vinfo
->visualid
)
337 || (comparePointers
&& v
->vishandle
== vinfo
)) {
343 /* Create a new visual and add it to the list. */
345 xmvis
= XMesaCreateVisual( dpy
, vinfo
, rgbFlag
, alphaFlag
, dbFlag
,
346 stereoFlag
, ximageFlag
,
347 depth_size
, stencil_size
,
348 accumRedSize
, accumBlueSize
,
349 accumBlueSize
, accumAlphaSize
, 0, level
,
352 /* Save a copy of the pointer now so we can find this visual again
353 * if we need to search for it in find_glx_visual().
355 xmvis
->vishandle
= vinfo
;
356 /* Allocate more space for additional visual */
357 VisualTable
= (XMesaVisual
*) _mesa_realloc( VisualTable
,
358 sizeof(XMesaVisual
) * NumVisuals
,
359 sizeof(XMesaVisual
) * (NumVisuals
+ 1));
360 /* add xmvis to the list */
361 VisualTable
[NumVisuals
] = xmvis
;
363 /* XXX minor hack, because XMesaCreateVisual doesn't support an
364 * aux buffers parameter.
366 xmvis
->mesa_visual
.numAuxBuffers
= numAuxBuffers
;
373 * Return the default number of bits for the Z buffer.
374 * If defined, use the MESA_GLX_DEPTH_BITS env var value.
375 * Otherwise, use the DEFAULT_SOFTWARE_DEPTH_BITS constant.
376 * XXX probably do the same thing for stencil, accum, etc.
379 default_depth_bits(void)
382 const char *zEnv
= _mesa_getenv("MESA_GLX_DEPTH_BITS");
384 zBits
= _mesa_atoi(zEnv
);
386 zBits
= DEFAULT_SOFTWARE_DEPTH_BITS
;
391 default_alpha_bits(void)
394 const char *aEnv
= _mesa_getenv("MESA_GLX_ALPHA_BITS");
396 aBits
= _mesa_atoi(aEnv
);
403 default_accum_bits(void)
411 * Create a GLX visual from a regular XVisualInfo.
412 * This is called when Fake GLX is given an XVisualInfo which wasn't
413 * returned by glXChooseVisual. Since this is the first time we're
414 * considering this visual we'll take a guess at reasonable values
415 * for depth buffer size, stencil size, accum size, etc.
416 * This is the best we can do with a client-side emulation of GLX.
419 create_glx_visual( Display
*dpy
, XVisualInfo
*visinfo
)
422 GLint zBits
= 24; /*default_depth_bits();*/
423 GLint accBits
= default_accum_bits();
424 GLboolean alphaFlag
= default_alpha_bits() > 0;
426 vislevel
= level_of_visual( dpy
, visinfo
);
428 /* Configure this visual as a CI, single-buffered overlay */
429 return save_glx_visual( dpy
, visinfo
,
431 GL_FALSE
, /* alpha */
432 GL_FALSE
, /* double */
433 GL_FALSE
, /* stereo */
435 0, /* stencil bits */
436 0,0,0,0, /* accum bits */
437 vislevel
, /* level */
441 else if (is_usable_visual( visinfo
)) {
442 if (_mesa_getenv("MESA_GLX_FORCE_CI")) {
443 /* Configure this visual as a COLOR INDEX visual. */
444 return save_glx_visual( dpy
, visinfo
,
446 GL_FALSE
, /* alpha */
447 GL_TRUE
, /* double */
448 GL_FALSE
, /* stereo */
451 0, 0, 0, 0, /* accum bits */
457 /* Configure this visual as RGB, double-buffered, depth-buffered. */
458 /* This is surely wrong for some people's needs but what else */
459 /* can be done? They should use glXChooseVisual(). */
460 return save_glx_visual( dpy
, visinfo
,
462 alphaFlag
, /* alpha */
463 GL_TRUE
, /* double */
464 GL_FALSE
, /* stereo */
477 _mesa_warning(NULL
, "Mesa: error in glXCreateContext: bad visual\n");
485 * Find the GLX visual associated with an XVisualInfo.
488 find_glx_visual( Display
*dpy
, XVisualInfo
*vinfo
)
492 /* try to match visual id */
493 for (i
=0;i
<NumVisuals
;i
++) {
494 if (VisualTable
[i
]->display
==dpy
495 && VisualTable
[i
]->visinfo
->visualid
== vinfo
->visualid
) {
496 return VisualTable
[i
];
500 /* if that fails, try to match pointers */
501 for (i
=0;i
<NumVisuals
;i
++) {
502 if (VisualTable
[i
]->display
==dpy
&& VisualTable
[i
]->vishandle
==vinfo
) {
503 return VisualTable
[i
];
513 * Return the transparent pixel value for a GLX visual.
514 * Input: glxvis - the glx_visual
515 * Return: a pixel value or -1 if no transparent pixel
518 transparent_pixel( XMesaVisual glxvis
)
520 Display
*dpy
= glxvis
->display
;
521 XVisualInfo
*vinfo
= glxvis
->visinfo
;
522 OverlayInfo
*overlay_info
;
523 int numOverlaysPerScreen
, i
;
525 overlay_info
= GetOverlayInfo(dpy
, vinfo
->screen
, &numOverlaysPerScreen
);
530 for (i
= 0; i
< numOverlaysPerScreen
; i
++) {
531 const OverlayInfo
*ov
= overlay_info
+ i
;
532 if (ov
->overlay_visual
== vinfo
->visualid
) {
534 if (ov
->transparent_type
== 0) {
535 /* type 0 indicates no transparency */
536 XFree((void *) overlay_info
);
540 /* ov->value is the transparent pixel */
541 XFree((void *) overlay_info
);
547 /* The visual ID was not found in the overlay list. */
548 XFree((void *) overlay_info
);
555 * Try to get an X visual which matches the given arguments.
558 get_visual( Display
*dpy
, int scr
, unsigned int depth
, int xclass
)
560 XVisualInfo temp
, *vis
;
563 unsigned int default_depth
;
566 mask
= VisualScreenMask
| VisualDepthMask
| VisualClassMask
;
571 default_depth
= DefaultDepth(dpy
,scr
);
572 default_class
= DefaultVisual(dpy
,scr
)->CLASS
;
574 if (depth
==default_depth
&& xclass
==default_class
) {
575 /* try to get root window's visual */
576 temp
.visualid
= DefaultVisual(dpy
,scr
)->visualid
;
577 mask
|= VisualIDMask
;
580 vis
= XGetVisualInfo( dpy
, mask
, &temp
, &n
);
582 /* In case bits/pixel > 24, make sure color channels are still <=8 bits.
583 * An SGI Infinite Reality system, for example, can have 30bpp pixels:
584 * 10 bits per color channel. Mesa's limited to a max of 8 bits/channel.
586 if (vis
&& depth
> 24 && (xclass
==TrueColor
|| xclass
==DirectColor
)) {
587 if (_mesa_bitcount((GLuint
) vis
->red_mask
) <= 8 &&
588 _mesa_bitcount((GLuint
) vis
->green_mask
) <= 8 &&
589 _mesa_bitcount((GLuint
) vis
->blue_mask
) <= 8) {
604 * Retrieve the value of the given environment variable and find
605 * the X visual which matches it.
606 * Input: dpy - the display
607 * screen - the screen number
608 * varname - the name of the environment variable
609 * Return: an XVisualInfo pointer to NULL if error.
612 get_env_visual(Display
*dpy
, int scr
, const char *varname
)
614 char value
[100], type
[100];
615 int depth
, xclass
= -1;
618 if (!_mesa_getenv( varname
)) {
622 _mesa_strncpy( value
, _mesa_getenv(varname
), 100 );
625 sscanf( value
, "%s %d", type
, &depth
);
627 if (_mesa_strcmp(type
,"TrueColor")==0) xclass
= TrueColor
;
628 else if (_mesa_strcmp(type
,"DirectColor")==0) xclass
= DirectColor
;
629 else if (_mesa_strcmp(type
,"PseudoColor")==0) xclass
= PseudoColor
;
630 else if (_mesa_strcmp(type
,"StaticColor")==0) xclass
= StaticColor
;
631 else if (_mesa_strcmp(type
,"GrayScale")==0) xclass
= GrayScale
;
632 else if (_mesa_strcmp(type
,"StaticGray")==0) xclass
= StaticGray
;
634 if (xclass
>-1 && depth
>0) {
635 vis
= get_visual( dpy
, scr
, depth
, xclass
);
641 _mesa_warning(NULL
, "GLX unable to find visual class=%s, depth=%d.",
650 * Select an X visual which satisfies the RGBA/CI flag and minimum depth.
651 * Input: dpy, screen - X display and screen number
652 * rgba - GL_TRUE = RGBA mode, GL_FALSE = CI mode
653 * min_depth - minimum visual depth
654 * preferred_class - preferred GLX visual class or DONT_CARE
655 * Return: pointer to an XVisualInfo or NULL.
658 choose_x_visual( Display
*dpy
, int screen
, GLboolean rgba
, int min_depth
,
659 int preferred_class
)
662 int xclass
, visclass
= 0;
666 Atom hp_cr_maps
= XInternAtom(dpy
, "_HP_RGB_SMOOTH_MAP_LIST", True
);
667 /* First see if the MESA_RGB_VISUAL env var is defined */
668 vis
= get_env_visual( dpy
, screen
, "MESA_RGB_VISUAL" );
672 /* Otherwise, search for a suitable visual */
673 if (preferred_class
==DONT_CARE
) {
674 for (xclass
=0;xclass
<6;xclass
++) {
676 case 0: visclass
= TrueColor
; break;
677 case 1: visclass
= DirectColor
; break;
678 case 2: visclass
= PseudoColor
; break;
679 case 3: visclass
= StaticColor
; break;
680 case 4: visclass
= GrayScale
; break;
681 case 5: visclass
= StaticGray
; break;
684 /* start with shallowest */
685 for (depth
=0;depth
<=32;depth
++) {
686 if (visclass
==TrueColor
&& depth
==8 && !hp_cr_maps
) {
687 /* Special case: try to get 8-bit PseudoColor before */
688 /* 8-bit TrueColor */
689 vis
= get_visual( dpy
, screen
, 8, PseudoColor
);
694 vis
= get_visual( dpy
, screen
, depth
, visclass
);
701 /* start with deepest */
702 for (depth
=32;depth
>=min_depth
;depth
--) {
703 if (visclass
==TrueColor
&& depth
==8 && !hp_cr_maps
) {
704 /* Special case: try to get 8-bit PseudoColor before */
705 /* 8-bit TrueColor */
706 vis
= get_visual( dpy
, screen
, 8, PseudoColor
);
711 vis
= get_visual( dpy
, screen
, depth
, visclass
);
720 /* search for a specific visual class */
721 switch (preferred_class
) {
722 case GLX_TRUE_COLOR_EXT
: visclass
= TrueColor
; break;
723 case GLX_DIRECT_COLOR_EXT
: visclass
= DirectColor
; break;
724 case GLX_PSEUDO_COLOR_EXT
: visclass
= PseudoColor
; break;
725 case GLX_STATIC_COLOR_EXT
: visclass
= StaticColor
; break;
726 case GLX_GRAY_SCALE_EXT
: visclass
= GrayScale
; break;
727 case GLX_STATIC_GRAY_EXT
: visclass
= StaticGray
; break;
728 default: return NULL
;
731 /* start with shallowest */
732 for (depth
=0;depth
<=32;depth
++) {
733 vis
= get_visual( dpy
, screen
, depth
, visclass
);
740 /* start with deepest */
741 for (depth
=32;depth
>=min_depth
;depth
--) {
742 vis
= get_visual( dpy
, screen
, depth
, visclass
);
751 /* First see if the MESA_CI_VISUAL env var is defined */
752 vis
= get_env_visual( dpy
, screen
, "MESA_CI_VISUAL" );
756 /* Otherwise, search for a suitable visual, starting with shallowest */
757 if (preferred_class
==DONT_CARE
) {
758 for (xclass
=0;xclass
<4;xclass
++) {
760 case 0: visclass
= PseudoColor
; break;
761 case 1: visclass
= StaticColor
; break;
762 case 2: visclass
= GrayScale
; break;
763 case 3: visclass
= StaticGray
; break;
765 /* try 8-bit up through 16-bit */
766 for (depth
=8;depth
<=16;depth
++) {
767 vis
= get_visual( dpy
, screen
, depth
, visclass
);
772 /* try min_depth up to 8-bit */
773 for (depth
=min_depth
;depth
<8;depth
++) {
774 vis
= get_visual( dpy
, screen
, depth
, visclass
);
782 /* search for a specific visual class */
783 switch (preferred_class
) {
784 case GLX_TRUE_COLOR_EXT
: visclass
= TrueColor
; break;
785 case GLX_DIRECT_COLOR_EXT
: visclass
= DirectColor
; break;
786 case GLX_PSEUDO_COLOR_EXT
: visclass
= PseudoColor
; break;
787 case GLX_STATIC_COLOR_EXT
: visclass
= StaticColor
; break;
788 case GLX_GRAY_SCALE_EXT
: visclass
= GrayScale
; break;
789 case GLX_STATIC_GRAY_EXT
: visclass
= StaticGray
; break;
790 default: return NULL
;
792 /* try 8-bit up through 16-bit */
793 for (depth
=8;depth
<=16;depth
++) {
794 vis
= get_visual( dpy
, screen
, depth
, visclass
);
799 /* try min_depth up to 8-bit */
800 for (depth
=min_depth
;depth
<8;depth
++) {
801 vis
= get_visual( dpy
, screen
, depth
, visclass
);
809 /* didn't find a visual */
816 * Find the deepest X over/underlay visual of at least min_depth.
817 * Input: dpy, screen - X display and screen number
818 * level - the over/underlay level
819 * trans_type - transparent pixel type: GLX_NONE_EXT,
820 * GLX_TRANSPARENT_RGB_EXT, GLX_TRANSPARENT_INDEX_EXT,
822 * trans_value - transparent pixel value or DONT_CARE
823 * min_depth - minimum visual depth
824 * preferred_class - preferred GLX visual class or DONT_CARE
825 * Return: pointer to an XVisualInfo or NULL.
828 choose_x_overlay_visual( Display
*dpy
, int scr
, GLboolean rgbFlag
,
829 int level
, int trans_type
, int trans_value
,
830 int min_depth
, int preferred_class
)
832 OverlayInfo
*overlay_info
;
833 int numOverlaysPerScreen
;
835 XVisualInfo
*deepvis
;
838 /*DEBUG int tt, tv; */
840 switch (preferred_class
) {
841 case GLX_TRUE_COLOR_EXT
: preferred_class
= TrueColor
; break;
842 case GLX_DIRECT_COLOR_EXT
: preferred_class
= DirectColor
; break;
843 case GLX_PSEUDO_COLOR_EXT
: preferred_class
= PseudoColor
; break;
844 case GLX_STATIC_COLOR_EXT
: preferred_class
= StaticColor
; break;
845 case GLX_GRAY_SCALE_EXT
: preferred_class
= GrayScale
; break;
846 case GLX_STATIC_GRAY_EXT
: preferred_class
= StaticGray
; break;
847 default: preferred_class
= DONT_CARE
;
850 overlay_info
= GetOverlayInfo(dpy
, scr
, &numOverlaysPerScreen
);
855 /* Search for the deepest overlay which satisifies all criteria. */
859 for (i
= 0; i
< numOverlaysPerScreen
; i
++) {
860 const OverlayInfo
*ov
= overlay_info
+ i
;
861 XVisualInfo
*vislist
, vistemplate
;
864 if (ov
->layer
!=level
) {
865 /* failed overlay level criteria */
868 if (!(trans_type
==DONT_CARE
869 || (trans_type
==GLX_TRANSPARENT_INDEX_EXT
870 && ov
->transparent_type
>0)
871 || (trans_type
==GLX_NONE_EXT
&& ov
->transparent_type
==0))) {
872 /* failed transparent pixel type criteria */
875 if (trans_value
!=DONT_CARE
&& trans_value
!=ov
->value
) {
876 /* failed transparent pixel value criteria */
880 /* get XVisualInfo and check the depth */
881 vistemplate
.visualid
= ov
->overlay_visual
;
882 vistemplate
.screen
= scr
;
883 vislist
= XGetVisualInfo( dpy
, VisualIDMask
| VisualScreenMask
,
884 &vistemplate
, &count
);
887 /* something went wrong */
890 if (preferred_class
!=DONT_CARE
&& preferred_class
!=vislist
->CLASS
) {
891 /* wrong visual class */
895 /* if RGB was requested, make sure we have True/DirectColor */
896 if (rgbFlag
&& vislist
->CLASS
!= TrueColor
897 && vislist
->CLASS
!= DirectColor
)
900 /* if CI was requested, make sure we have a color indexed visual */
902 && (vislist
->CLASS
== TrueColor
|| vislist
->CLASS
== DirectColor
))
905 if (deepvis
==NULL
|| vislist
->depth
> deepest
) {
906 /* YES! found a satisfactory visual */
910 deepest
= vislist
->depth
;
912 /* DEBUG tt = ov->transparent_type;*/
913 /* DEBUG tv = ov->value; */
919 printf("chose 0x%x: layer=%d depth=%d trans_type=%d trans_value=%d\n",
920 deepvis->visualid, level, deepvis->depth, tt, tv );
927 /**********************************************************************/
928 /*** Display-related functions ***/
929 /**********************************************************************/
933 * Free all XMesaVisuals which are associated with the given display.
936 destroy_visuals_on_display(Display
*dpy
)
939 for (i
= 0; i
< NumVisuals
; i
++) {
940 if (VisualTable
[i
]->display
== dpy
) {
941 /* remove this visual */
943 free(VisualTable
[i
]);
944 for (j
= i
; j
< NumVisuals
- 1; j
++)
945 VisualTable
[j
] = VisualTable
[j
+ 1];
953 * Called from XCloseDisplay() to let us free our display-related data.
956 close_display_callback(Display
*dpy
, XExtCodes
*codes
)
958 destroy_visuals_on_display(dpy
);
959 xmesa_destroy_buffers_on_display(dpy
);
965 * Look for the named extension on given display and return a pointer
966 * to the _XExtension data, or NULL if extension not found.
969 lookup_extension(Display
*dpy
, const char *extName
)
972 for (ext
= dpy
->ext_procs
; ext
; ext
= ext
->next
) {
973 if (ext
->name
&& strcmp(ext
->name
, extName
) == 0) {
982 * Whenever we're given a new Display pointer, call this function to
983 * register our close_display_callback function.
986 register_with_display(Display
*dpy
)
988 const char *extName
= "MesaGLX";
991 ext
= lookup_extension(dpy
, extName
);
993 XExtCodes
*c
= XAddExtension(dpy
);
994 ext
= dpy
->ext_procs
; /* new extension is at head of list */
995 assert(c
->extension
== ext
->codes
.extension
);
996 ext
->name
= _mesa_strdup(extName
);
997 ext
->close_display
= close_display_callback
;
1002 /**********************************************************************/
1003 /*** Begin Fake GLX API Functions ***/
1004 /**********************************************************************/
1008 * Helper used by glXChooseVisual and glXChooseFBConfig.
1009 * The fbConfig parameter must be GL_FALSE for the former and GL_TRUE for
1011 * In either case, the attribute list is terminated with the value 'None'.
1014 choose_visual( Display
*dpy
, int screen
, const int *list
, GLboolean fbConfig
)
1016 const GLboolean rgbModeDefault
= fbConfig
;
1017 const int *parselist
;
1020 int min_red
=0, min_green
=0, min_blue
=0;
1021 GLboolean rgb_flag
= rgbModeDefault
;
1022 GLboolean alpha_flag
= GL_FALSE
;
1023 GLboolean double_flag
= GL_FALSE
;
1024 GLboolean stereo_flag
= GL_FALSE
;
1025 GLint depth_size
= 0;
1026 GLint stencil_size
= 0;
1027 GLint accumRedSize
= 0;
1028 GLint accumGreenSize
= 0;
1029 GLint accumBlueSize
= 0;
1030 GLint accumAlphaSize
= 0;
1032 int visual_type
= DONT_CARE
;
1033 int trans_type
= DONT_CARE
;
1034 int trans_value
= DONT_CARE
;
1035 GLint caveat
= DONT_CARE
;
1036 XMesaVisual xmvis
= NULL
;
1037 int desiredVisualID
= -1;
1042 while (*parselist
) {
1044 switch (*parselist
) {
1055 case GLX_BUFFER_SIZE
:
1057 min_ci
= *parselist
++;
1061 level
= *parselist
++;
1073 case GLX_DOUBLEBUFFER
:
1076 double_flag
= *parselist
++;
1079 double_flag
= GL_TRUE
;
1085 stereo_flag
= *parselist
++;
1088 stereo_flag
= GL_TRUE
;
1091 case GLX_AUX_BUFFERS
:
1093 numAux
= *parselist
++;
1094 if (numAux
> MAX_AUX_BUFFERS
)
1099 min_red
= *parselist
++;
1101 case GLX_GREEN_SIZE
:
1103 min_green
= *parselist
++;
1107 min_blue
= *parselist
++;
1109 case GLX_ALPHA_SIZE
:
1112 GLint size
= *parselist
++;
1113 alpha_flag
= size
? GL_TRUE
: GL_FALSE
;
1116 case GLX_DEPTH_SIZE
:
1118 depth_size
= *parselist
++;
1120 case GLX_STENCIL_SIZE
:
1122 stencil_size
= *parselist
++;
1124 case GLX_ACCUM_RED_SIZE
:
1127 GLint size
= *parselist
++;
1128 accumRedSize
= MAX2( accumRedSize
, size
);
1131 case GLX_ACCUM_GREEN_SIZE
:
1134 GLint size
= *parselist
++;
1135 accumGreenSize
= MAX2( accumGreenSize
, size
);
1138 case GLX_ACCUM_BLUE_SIZE
:
1141 GLint size
= *parselist
++;
1142 accumBlueSize
= MAX2( accumBlueSize
, size
);
1145 case GLX_ACCUM_ALPHA_SIZE
:
1148 GLint size
= *parselist
++;
1149 accumAlphaSize
= MAX2( accumAlphaSize
, size
);
1154 * GLX_EXT_visual_info extension
1156 case GLX_X_VISUAL_TYPE_EXT
:
1158 visual_type
= *parselist
++;
1160 case GLX_TRANSPARENT_TYPE_EXT
:
1162 trans_type
= *parselist
++;
1164 case GLX_TRANSPARENT_INDEX_VALUE_EXT
:
1166 trans_value
= *parselist
++;
1168 case GLX_TRANSPARENT_RED_VALUE_EXT
:
1169 case GLX_TRANSPARENT_GREEN_VALUE_EXT
:
1170 case GLX_TRANSPARENT_BLUE_VALUE_EXT
:
1171 case GLX_TRANSPARENT_ALPHA_VALUE_EXT
:
1178 * GLX_EXT_visual_info extension
1180 case GLX_VISUAL_CAVEAT_EXT
:
1182 caveat
= *parselist
++; /* ignored for now */
1186 * GLX_ARB_multisample
1188 case GLX_SAMPLE_BUFFERS_ARB
:
1189 /* ms not supported */
1191 case GLX_SAMPLES_ARB
:
1192 /* ms not supported */
1198 case GLX_RENDER_TYPE
:
1202 if (*parselist
== GLX_RGBA_BIT
) {
1205 else if (*parselist
== GLX_COLOR_INDEX_BIT
) {
1206 rgb_flag
= GL_FALSE
;
1208 else if (*parselist
== 0) {
1213 case GLX_DRAWABLE_TYPE
:
1217 if (*parselist
& ~(GLX_WINDOW_BIT
| GLX_PIXMAP_BIT
| GLX_PBUFFER_BIT
)) {
1218 return NULL
; /* bad bit */
1222 case GLX_FBCONFIG_ID
:
1226 desiredVisualID
= *parselist
++;
1228 case GLX_X_RENDERABLE
:
1235 #ifdef GLX_EXT_texture_from_pixmap
1236 case GLX_BIND_TO_TEXTURE_RGB_EXT
:
1237 parselist
++; /*skip*/
1239 case GLX_BIND_TO_TEXTURE_RGBA_EXT
:
1240 parselist
++; /*skip*/
1242 case GLX_BIND_TO_MIPMAP_TEXTURE_EXT
:
1243 parselist
++; /*skip*/
1245 case GLX_BIND_TO_TEXTURE_TARGETS_EXT
:
1247 if (*parselist
& ~(GLX_TEXTURE_1D_BIT_EXT
|
1248 GLX_TEXTURE_2D_BIT_EXT
|
1249 GLX_TEXTURE_RECTANGLE_BIT_EXT
)) {
1254 case GLX_Y_INVERTED_EXT
:
1255 parselist
++; /*skip*/
1264 /* undefined attribute */
1265 _mesa_warning(NULL
, "unexpected attrib 0x%x in choose_visual()",
1274 * Since we're only simulating the GLX extension this function will never
1275 * find any real GL visuals. Instead, all we can do is try to find an RGB
1276 * or CI visual of appropriate depth. Other requested attributes such as
1277 * double buffering, depth buffer, etc. will be associated with the X
1278 * visual and stored in the VisualTable[].
1280 if (desiredVisualID
!= -1) {
1281 /* try to get a specific visual, by visualID */
1284 temp
.visualid
= desiredVisualID
;
1285 temp
.screen
= screen
;
1286 vis
= XGetVisualInfo(dpy
, VisualIDMask
| VisualScreenMask
, &temp
, &n
);
1288 /* give the visual some useful GLX attributes */
1289 double_flag
= GL_TRUE
;
1292 depth_size
= 24; /*default_depth_bits();*/
1293 stencil_size
= STENCIL_BITS
;
1297 else if (level
==0) {
1298 /* normal color planes */
1300 /* Get an RGB visual */
1301 int min_rgb
= min_red
+ min_green
+ min_blue
;
1302 if (min_rgb
>1 && min_rgb
<8) {
1303 /* a special case to be sure we can get a monochrome visual */
1306 vis
= choose_x_visual( dpy
, screen
, rgb_flag
, min_rgb
, visual_type
);
1309 /* Get a color index visual */
1310 vis
= choose_x_visual( dpy
, screen
, rgb_flag
, min_ci
, visual_type
);
1311 accumRedSize
= accumGreenSize
= accumBlueSize
= accumAlphaSize
= 0;
1315 /* over/underlay planes */
1318 int min_rgb
= min_red
+ min_green
+ min_blue
;
1319 if (min_rgb
>1 && min_rgb
<8) {
1320 /* a special case to be sure we can get a monochrome visual */
1323 vis
= choose_x_overlay_visual( dpy
, screen
, rgb_flag
, level
,
1324 trans_type
, trans_value
, min_rgb
, visual_type
);
1327 /* color index overlay */
1328 vis
= choose_x_overlay_visual( dpy
, screen
, rgb_flag
, level
,
1329 trans_type
, trans_value
, min_ci
, visual_type
);
1334 /* Note: we're not exactly obeying the glXChooseVisual rules here.
1335 * When GLX_DEPTH_SIZE = 1 is specified we're supposed to choose the
1336 * largest depth buffer size, which is 32bits/value. Instead, we
1337 * return 16 to maintain performance with earlier versions of Mesa.
1339 if (stencil_size
> 0)
1340 depth_size
= 24; /* if Z and stencil, always use 24+8 format */
1341 else if (depth_size
> 24)
1343 else if (depth_size
> 16)
1345 else if (depth_size
> 0) {
1346 depth_size
= default_depth_bits();
1350 alpha_flag
= default_alpha_bits() > 0;
1353 /* we only support one size of stencil and accum buffers. */
1354 if (stencil_size
> 0)
1355 stencil_size
= STENCIL_BITS
;
1356 if (accumRedSize
> 0 || accumGreenSize
> 0 || accumBlueSize
> 0 ||
1357 accumAlphaSize
> 0) {
1360 accumBlueSize
= default_accum_bits();
1361 accumAlphaSize
= alpha_flag
? accumRedSize
: 0;
1364 xmvis
= save_glx_visual( dpy
, vis
, rgb_flag
, alpha_flag
, double_flag
,
1365 stereo_flag
, depth_size
, stencil_size
,
1366 accumRedSize
, accumGreenSize
,
1367 accumBlueSize
, accumAlphaSize
, level
, numAux
);
1374 static XVisualInfo
*
1375 Fake_glXChooseVisual( Display
*dpy
, int screen
, int *list
)
1379 /* register ourselves as an extension on this display */
1380 register_with_display(dpy
);
1382 xmvis
= choose_visual(dpy
, screen
, list
, GL_FALSE
);
1385 return xmvis
->vishandle
;
1387 /* create a new vishandle - the cached one may be stale */
1388 xmvis
->vishandle
= (XVisualInfo
*) _mesa_malloc(sizeof(XVisualInfo
));
1389 if (xmvis
->vishandle
) {
1390 _mesa_memcpy(xmvis
->vishandle
, xmvis
->visinfo
, sizeof(XVisualInfo
));
1392 return xmvis
->vishandle
;
1401 Fake_glXCreateContext( Display
*dpy
, XVisualInfo
*visinfo
,
1402 GLXContext share_list
, Bool direct
)
1405 struct fake_glx_context
*glxCtx
;
1406 struct fake_glx_context
*shareCtx
= (struct fake_glx_context
*) share_list
;
1408 if (!dpy
|| !visinfo
)
1411 glxCtx
= CALLOC_STRUCT(fake_glx_context
);
1415 /* deallocate unused windows/buffers */
1417 XMesaGarbageCollect();
1420 xmvis
= find_glx_visual( dpy
, visinfo
);
1422 /* This visual wasn't found with glXChooseVisual() */
1423 xmvis
= create_glx_visual( dpy
, visinfo
);
1425 /* unusable visual */
1431 glxCtx
->xmesaContext
= XMesaCreateContext(xmvis
,
1432 shareCtx
? shareCtx
->xmesaContext
: NULL
);
1433 if (!glxCtx
->xmesaContext
) {
1438 glxCtx
->glxContext
.isDirect
= GL_FALSE
;
1439 glxCtx
->glxContext
.currentDpy
= dpy
;
1440 glxCtx
->glxContext
.xid
= (XID
) glxCtx
; /* self pointer */
1442 assert((void *) glxCtx
== (void *) &(glxCtx
->glxContext
));
1444 return (GLXContext
) glxCtx
;
1448 /* XXX these may have to be removed due to thread-safety issues. */
1449 static GLXContext MakeCurrent_PrevContext
= 0;
1450 static GLXDrawable MakeCurrent_PrevDrawable
= 0;
1451 static GLXDrawable MakeCurrent_PrevReadable
= 0;
1452 static XMesaBuffer MakeCurrent_PrevDrawBuffer
= 0;
1453 static XMesaBuffer MakeCurrent_PrevReadBuffer
= 0;
1456 /* GLX 1.3 and later */
1458 Fake_glXMakeContextCurrent( Display
*dpy
, GLXDrawable draw
,
1459 GLXDrawable read
, GLXContext ctx
)
1461 struct fake_glx_context
*glxCtx
= (struct fake_glx_context
*) ctx
;
1463 if (ctx
&& draw
&& read
) {
1464 XMesaBuffer drawBuffer
, readBuffer
;
1465 XMesaContext xmctx
= glxCtx
->xmesaContext
;
1467 /* Find the XMesaBuffer which corresponds to the GLXDrawable 'draw' */
1468 if (ctx
== MakeCurrent_PrevContext
1469 && draw
== MakeCurrent_PrevDrawable
) {
1470 drawBuffer
= MakeCurrent_PrevDrawBuffer
;
1473 drawBuffer
= XMesaFindBuffer( dpy
, draw
);
1476 /* drawable must be a new window! */
1477 drawBuffer
= XMesaCreateWindowBuffer( xmctx
->xm_visual
, draw
);
1479 /* Out of memory, or context/drawable depth mismatch */
1483 FXcreateContext( xmctx
->xm_visual
, draw
, xmctx
, drawBuffer
);
1487 /* Find the XMesaBuffer which corresponds to the GLXDrawable 'read' */
1488 if (ctx
== MakeCurrent_PrevContext
1489 && read
== MakeCurrent_PrevReadable
) {
1490 readBuffer
= MakeCurrent_PrevReadBuffer
;
1493 readBuffer
= XMesaFindBuffer( dpy
, read
);
1496 /* drawable must be a new window! */
1497 readBuffer
= XMesaCreateWindowBuffer( xmctx
->xm_visual
, read
);
1499 /* Out of memory, or context/drawable depth mismatch */
1503 FXcreateContext( xmctx
->xm_visual
, read
, xmctx
, readBuffer
);
1507 if (MakeCurrent_PrevContext
== ctx
&&
1508 MakeCurrent_PrevDrawable
== draw
&&
1509 MakeCurrent_PrevReadable
== read
&&
1510 MakeCurrent_PrevDrawBuffer
== drawBuffer
&&
1511 MakeCurrent_PrevReadBuffer
== readBuffer
)
1514 MakeCurrent_PrevContext
= ctx
;
1515 MakeCurrent_PrevDrawable
= draw
;
1516 MakeCurrent_PrevReadable
= read
;
1517 MakeCurrent_PrevDrawBuffer
= drawBuffer
;
1518 MakeCurrent_PrevReadBuffer
= readBuffer
;
1520 /* Now make current! */
1521 if (XMesaMakeCurrent2(xmctx
, drawBuffer
, readBuffer
)) {
1522 ((__GLXcontext
*) ctx
)->currentDpy
= dpy
;
1523 ((__GLXcontext
*) ctx
)->currentDrawable
= draw
;
1524 ((__GLXcontext
*) ctx
)->currentReadable
= read
;
1531 else if (!ctx
&& !draw
&& !read
) {
1532 /* release current context w/out assigning new one. */
1533 XMesaMakeCurrent( NULL
, NULL
);
1534 MakeCurrent_PrevContext
= 0;
1535 MakeCurrent_PrevDrawable
= 0;
1536 MakeCurrent_PrevReadable
= 0;
1537 MakeCurrent_PrevDrawBuffer
= 0;
1538 MakeCurrent_PrevReadBuffer
= 0;
1542 /* The args must either all be non-zero or all zero.
1551 Fake_glXMakeCurrent( Display
*dpy
, GLXDrawable drawable
, GLXContext ctx
)
1553 return Fake_glXMakeContextCurrent( dpy
, drawable
, drawable
, ctx
);
1558 Fake_glXCreateGLXPixmap( Display
*dpy
, XVisualInfo
*visinfo
, Pixmap pixmap
)
1563 v
= find_glx_visual( dpy
, visinfo
);
1565 v
= create_glx_visual( dpy
, visinfo
);
1567 /* unusable visual */
1572 b
= XMesaCreatePixmapBuffer( v
, pixmap
, 0 );
1580 /*** GLX_MESA_pixmap_colormap ***/
1583 Fake_glXCreateGLXPixmapMESA( Display
*dpy
, XVisualInfo
*visinfo
,
1584 Pixmap pixmap
, Colormap cmap
)
1589 v
= find_glx_visual( dpy
, visinfo
);
1591 v
= create_glx_visual( dpy
, visinfo
);
1593 /* unusable visual */
1598 b
= XMesaCreatePixmapBuffer( v
, pixmap
, cmap
);
1607 Fake_glXDestroyGLXPixmap( Display
*dpy
, GLXPixmap pixmap
)
1609 XMesaBuffer b
= XMesaFindBuffer(dpy
, pixmap
);
1611 XMesaDestroyBuffer(b
);
1613 else if (_mesa_getenv("MESA_DEBUG")) {
1614 _mesa_warning(NULL
, "Mesa: glXDestroyGLXPixmap: invalid pixmap\n");
1620 Fake_glXCopyContext( Display
*dpy
, GLXContext src
, GLXContext dst
,
1621 unsigned long mask
)
1623 struct fake_glx_context
*fakeSrc
= (struct fake_glx_context
*) src
;
1624 struct fake_glx_context
*fakeDst
= (struct fake_glx_context
*) dst
;
1625 XMesaContext xm_src
= fakeSrc
->xmesaContext
;
1626 XMesaContext xm_dst
= fakeDst
->xmesaContext
;
1628 if (MakeCurrent_PrevContext
== src
) {
1631 st_copy_context_state( xm_src
->st
, xm_dst
->st
, (GLuint
) mask
);
1636 Fake_glXQueryExtension( Display
*dpy
, int *errorb
, int *event
)
1638 /* Mesa's GLX isn't really an X extension but we try to act like one. */
1646 extern void _kw_ungrab_all( Display
*dpy
);
1647 void _kw_ungrab_all( Display
*dpy
)
1649 XUngrabPointer( dpy
, CurrentTime
);
1650 XUngrabKeyboard( dpy
, CurrentTime
);
1655 Fake_glXDestroyContext( Display
*dpy
, GLXContext ctx
)
1657 struct fake_glx_context
*glxCtx
= (struct fake_glx_context
*) ctx
;
1659 MakeCurrent_PrevContext
= 0;
1660 MakeCurrent_PrevDrawable
= 0;
1661 MakeCurrent_PrevReadable
= 0;
1662 MakeCurrent_PrevDrawBuffer
= 0;
1663 MakeCurrent_PrevReadBuffer
= 0;
1664 XMesaDestroyContext( glxCtx
->xmesaContext
);
1665 XMesaGarbageCollect();
1671 Fake_glXIsDirect( Display
*dpy
, GLXContext ctx
)
1681 Fake_glXSwapBuffers( Display
*dpy
, GLXDrawable drawable
)
1683 XMesaBuffer buffer
= XMesaFindBuffer( dpy
, drawable
);
1686 XMesaSwapBuffers(buffer
);
1688 else if (_mesa_getenv("MESA_DEBUG")) {
1689 _mesa_warning(NULL
, "glXSwapBuffers: invalid drawable 0x%x\n",
1696 /*** GLX_MESA_copy_sub_buffer ***/
1699 Fake_glXCopySubBufferMESA( Display
*dpy
, GLXDrawable drawable
,
1700 int x
, int y
, int width
, int height
)
1702 XMesaBuffer buffer
= XMesaFindBuffer( dpy
, drawable
);
1704 XMesaCopySubBuffer(buffer
, x
, y
, width
, height
);
1706 else if (_mesa_getenv("MESA_DEBUG")) {
1707 _mesa_warning(NULL
, "Mesa: glXCopySubBufferMESA: invalid drawable\n");
1713 Fake_glXQueryVersion( Display
*dpy
, int *maj
, int *min
)
1716 /* Return GLX version, not Mesa version */
1717 assert(CLIENT_MAJOR_VERSION
== SERVER_MAJOR_VERSION
);
1718 *maj
= CLIENT_MAJOR_VERSION
;
1719 *min
= MIN2( CLIENT_MINOR_VERSION
, SERVER_MINOR_VERSION
);
1725 * Query the GLX attributes of the given XVisualInfo.
1728 get_config( XMesaVisual xmvis
, int attrib
, int *value
, GLboolean fbconfig
)
1734 return GLX_BAD_ATTRIBUTE
;
1735 *value
= (int) True
;
1737 case GLX_BUFFER_SIZE
:
1738 *value
= xmvis
->visinfo
->depth
;
1741 *value
= xmvis
->mesa_visual
.level
;
1745 return GLX_BAD_ATTRIBUTE
;
1746 if (xmvis
->mesa_visual
.rgbMode
) {
1753 case GLX_DOUBLEBUFFER
:
1754 *value
= (int) xmvis
->mesa_visual
.doubleBufferMode
;
1757 *value
= (int) xmvis
->mesa_visual
.stereoMode
;
1759 case GLX_AUX_BUFFERS
:
1760 *value
= xmvis
->mesa_visual
.numAuxBuffers
;
1763 *value
= xmvis
->mesa_visual
.redBits
;
1765 case GLX_GREEN_SIZE
:
1766 *value
= xmvis
->mesa_visual
.greenBits
;
1769 *value
= xmvis
->mesa_visual
.blueBits
;
1771 case GLX_ALPHA_SIZE
:
1772 *value
= xmvis
->mesa_visual
.alphaBits
;
1774 case GLX_DEPTH_SIZE
:
1775 *value
= xmvis
->mesa_visual
.depthBits
;
1777 case GLX_STENCIL_SIZE
:
1778 *value
= xmvis
->mesa_visual
.stencilBits
;
1780 case GLX_ACCUM_RED_SIZE
:
1781 *value
= xmvis
->mesa_visual
.accumRedBits
;
1783 case GLX_ACCUM_GREEN_SIZE
:
1784 *value
= xmvis
->mesa_visual
.accumGreenBits
;
1786 case GLX_ACCUM_BLUE_SIZE
:
1787 *value
= xmvis
->mesa_visual
.accumBlueBits
;
1789 case GLX_ACCUM_ALPHA_SIZE
:
1790 *value
= xmvis
->mesa_visual
.accumAlphaBits
;
1794 * GLX_EXT_visual_info extension
1796 case GLX_X_VISUAL_TYPE_EXT
:
1797 switch (xmvis
->visinfo
->CLASS
) {
1798 case StaticGray
: *value
= GLX_STATIC_GRAY_EXT
; return 0;
1799 case GrayScale
: *value
= GLX_GRAY_SCALE_EXT
; return 0;
1800 case StaticColor
: *value
= GLX_STATIC_GRAY_EXT
; return 0;
1801 case PseudoColor
: *value
= GLX_PSEUDO_COLOR_EXT
; return 0;
1802 case TrueColor
: *value
= GLX_TRUE_COLOR_EXT
; return 0;
1803 case DirectColor
: *value
= GLX_DIRECT_COLOR_EXT
; return 0;
1806 case GLX_TRANSPARENT_TYPE_EXT
:
1807 if (xmvis
->mesa_visual
.level
==0) {
1809 *value
= GLX_NONE_EXT
;
1811 else if (xmvis
->mesa_visual
.level
>0) {
1813 if (xmvis
->mesa_visual
.rgbMode
) {
1814 *value
= GLX_TRANSPARENT_RGB_EXT
;
1817 *value
= GLX_TRANSPARENT_INDEX_EXT
;
1820 else if (xmvis
->mesa_visual
.level
<0) {
1822 *value
= GLX_NONE_EXT
;
1825 case GLX_TRANSPARENT_INDEX_VALUE_EXT
:
1827 int pixel
= transparent_pixel( xmvis
);
1831 /* else undefined */
1834 case GLX_TRANSPARENT_RED_VALUE_EXT
:
1837 case GLX_TRANSPARENT_GREEN_VALUE_EXT
:
1840 case GLX_TRANSPARENT_BLUE_VALUE_EXT
:
1843 case GLX_TRANSPARENT_ALPHA_VALUE_EXT
:
1848 * GLX_EXT_visual_info extension
1850 case GLX_VISUAL_CAVEAT_EXT
:
1851 /* test for zero, just in case */
1852 if (xmvis
->mesa_visual
.visualRating
> 0)
1853 *value
= xmvis
->mesa_visual
.visualRating
;
1855 *value
= GLX_NONE_EXT
;
1859 * GLX_ARB_multisample
1861 case GLX_SAMPLE_BUFFERS_ARB
:
1864 case GLX_SAMPLES_ARB
:
1871 case GLX_SCREEN_EXT
:
1873 return GLX_BAD_ATTRIBUTE
;
1874 *value
= xmvis
->visinfo
->screen
;
1876 case GLX_DRAWABLE_TYPE
: /*SGIX too */
1878 return GLX_BAD_ATTRIBUTE
;
1879 *value
= GLX_WINDOW_BIT
| GLX_PIXMAP_BIT
| GLX_PBUFFER_BIT
;
1881 case GLX_RENDER_TYPE_SGIX
:
1883 return GLX_BAD_ATTRIBUTE
;
1884 if (xmvis
->mesa_visual
.rgbMode
)
1885 *value
= GLX_RGBA_BIT
;
1887 *value
= GLX_COLOR_INDEX_BIT
;
1889 case GLX_X_RENDERABLE_SGIX
:
1891 return GLX_BAD_ATTRIBUTE
;
1892 *value
= True
; /* XXX really? */
1894 case GLX_FBCONFIG_ID_SGIX
:
1896 return GLX_BAD_ATTRIBUTE
;
1897 *value
= xmvis
->visinfo
->visualid
;
1899 case GLX_MAX_PBUFFER_WIDTH
:
1901 return GLX_BAD_ATTRIBUTE
;
1902 /* XXX or MAX_WIDTH? */
1903 *value
= DisplayWidth(xmvis
->display
, xmvis
->visinfo
->screen
);
1905 case GLX_MAX_PBUFFER_HEIGHT
:
1907 return GLX_BAD_ATTRIBUTE
;
1908 *value
= DisplayHeight(xmvis
->display
, xmvis
->visinfo
->screen
);
1910 case GLX_MAX_PBUFFER_PIXELS
:
1912 return GLX_BAD_ATTRIBUTE
;
1913 *value
= DisplayWidth(xmvis
->display
, xmvis
->visinfo
->screen
) *
1914 DisplayHeight(xmvis
->display
, xmvis
->visinfo
->screen
);
1918 return GLX_BAD_ATTRIBUTE
;
1919 *value
= xmvis
->visinfo
->visualid
;
1922 #ifdef GLX_EXT_texture_from_pixmap
1923 case GLX_BIND_TO_TEXTURE_RGB_EXT
:
1924 *value
= True
; /*XXX*/
1926 case GLX_BIND_TO_TEXTURE_RGBA_EXT
:
1928 *value
= xmvis
->mesa_visual
.alphaBits
> 0 ? True
: False
;
1930 case GLX_BIND_TO_MIPMAP_TEXTURE_EXT
:
1931 *value
= True
; /*XXX*/
1933 case GLX_BIND_TO_TEXTURE_TARGETS_EXT
:
1934 *value
= (GLX_TEXTURE_1D_BIT_EXT
|
1935 GLX_TEXTURE_2D_BIT_EXT
|
1936 GLX_TEXTURE_RECTANGLE_BIT_EXT
); /*XXX*/
1938 case GLX_Y_INVERTED_EXT
:
1939 *value
= True
; /*XXX*/
1944 return GLX_BAD_ATTRIBUTE
;
1951 Fake_glXGetConfig( Display
*dpy
, XVisualInfo
*visinfo
,
1952 int attrib
, int *value
)
1956 if (!dpy
|| !visinfo
)
1957 return GLX_BAD_ATTRIBUTE
;
1959 xmvis
= find_glx_visual( dpy
, visinfo
);
1961 /* this visual wasn't obtained with glXChooseVisual */
1962 xmvis
= create_glx_visual( dpy
, visinfo
);
1964 /* this visual can't be used for GL rendering */
1965 if (attrib
==GLX_USE_GL
) {
1966 *value
= (int) False
;
1970 return GLX_BAD_VISUAL
;
1975 k
= get_config(xmvis
, attrib
, value
, GL_FALSE
);
1981 Fake_glXWaitGL( void )
1983 XMesaContext xmesa
= XMesaGetCurrentContext();
1984 XMesaFlush( xmesa
);
1990 Fake_glXWaitX( void )
1992 XMesaContext xmesa
= XMesaGetCurrentContext();
1993 XMesaFlush( xmesa
);
1998 get_extensions( void )
2001 const char *fx
= _mesa_getenv("MESA_GLX_FX");
2002 if (fx
&& fx
[0] != 'd') {
2006 return EXTENSIONS
+ 23; /* skip "GLX_MESA_set_3dfx_mode" */
2011 /* GLX 1.1 and later */
2013 Fake_glXQueryExtensionsString( Display
*dpy
, int screen
)
2017 return get_extensions();
2022 /* GLX 1.1 and later */
2024 Fake_glXQueryServerString( Display
*dpy
, int screen
, int name
)
2026 static char version
[1000];
2027 _mesa_sprintf(version
, "%d.%d %s",
2028 SERVER_MAJOR_VERSION
, SERVER_MINOR_VERSION
, MESA_GLX_VERSION
);
2034 case GLX_EXTENSIONS
:
2035 return get_extensions();
2047 /* GLX 1.1 and later */
2049 Fake_glXGetClientString( Display
*dpy
, int name
)
2051 static char version
[1000];
2052 _mesa_sprintf(version
, "%d.%d %s", CLIENT_MAJOR_VERSION
,
2053 CLIENT_MINOR_VERSION
, MESA_GLX_VERSION
);
2058 case GLX_EXTENSIONS
:
2059 return get_extensions();
2077 Fake_glXGetFBConfigAttrib( Display
*dpy
, GLXFBConfig config
,
2078 int attribute
, int *value
)
2080 XMesaVisual v
= (XMesaVisual
) config
;
2084 if (!dpy
|| !config
|| !value
)
2087 return get_config(v
, attribute
, value
, GL_TRUE
);
2091 static GLXFBConfig
*
2092 Fake_glXGetFBConfigs( Display
*dpy
, int screen
, int *nelements
)
2094 XVisualInfo
*visuals
, visTemplate
;
2095 const long visMask
= VisualScreenMask
;
2098 /* Get list of all X visuals */
2099 visTemplate
.screen
= screen
;
2100 visuals
= XGetVisualInfo(dpy
, visMask
, &visTemplate
, nelements
);
2101 if (*nelements
> 0) {
2102 XMesaVisual
*results
;
2103 results
= (XMesaVisual
*) _mesa_malloc(*nelements
* sizeof(XMesaVisual
));
2108 for (i
= 0; i
< *nelements
; i
++) {
2109 results
[i
] = create_glx_visual(dpy
, visuals
+ i
);
2111 return (GLXFBConfig
*) results
;
2117 static GLXFBConfig
*
2118 Fake_glXChooseFBConfig( Display
*dpy
, int screen
,
2119 const int *attribList
, int *nitems
)
2123 if (!attribList
|| !attribList
[0]) {
2124 /* return list of all configs (per GLX_SGIX_fbconfig spec) */
2125 return Fake_glXGetFBConfigs(dpy
, screen
, nitems
);
2128 xmvis
= choose_visual(dpy
, screen
, attribList
, GL_TRUE
);
2130 GLXFBConfig
*config
= (GLXFBConfig
*) _mesa_malloc(sizeof(XMesaVisual
));
2136 config
[0] = (GLXFBConfig
) xmvis
;
2137 return (GLXFBConfig
*) config
;
2146 static XVisualInfo
*
2147 Fake_glXGetVisualFromFBConfig( Display
*dpy
, GLXFBConfig config
)
2149 if (dpy
&& config
) {
2150 XMesaVisual xmvis
= (XMesaVisual
) config
;
2152 return xmvis
->vishandle
;
2154 /* create a new vishandle - the cached one may be stale */
2155 xmvis
->vishandle
= (XVisualInfo
*) _mesa_malloc(sizeof(XVisualInfo
));
2156 if (xmvis
->vishandle
) {
2157 _mesa_memcpy(xmvis
->vishandle
, xmvis
->visinfo
, sizeof(XVisualInfo
));
2159 return xmvis
->vishandle
;
2169 Fake_glXCreateWindow( Display
*dpy
, GLXFBConfig config
, Window win
,
2170 const int *attribList
)
2172 XMesaVisual xmvis
= (XMesaVisual
) config
;
2177 xmbuf
= XMesaCreateWindowBuffer(xmvis
, win
);
2182 /* XXX this will segfault if actually called */
2183 FXcreateContext(xmvis
, win
, NULL
, xmbuf
);
2187 (void) attribList
; /* Ignored in GLX 1.3 */
2189 return win
; /* A hack for now */
2194 Fake_glXDestroyWindow( Display
*dpy
, GLXWindow window
)
2196 XMesaBuffer b
= XMesaFindBuffer(dpy
, (XMesaDrawable
) window
);
2198 XMesaDestroyBuffer(b
);
2199 /* don't destroy X window */
2205 Fake_glXCreatePixmap( Display
*dpy
, GLXFBConfig config
, Pixmap pixmap
,
2206 const int *attribList
)
2208 XMesaVisual v
= (XMesaVisual
) config
;
2211 int target
= 0, format
= 0, mipmap
= 0;
2214 if (!dpy
|| !config
|| !pixmap
)
2217 for (attr
= attribList
; *attr
; attr
++) {
2219 case GLX_TEXTURE_FORMAT_EXT
:
2222 case GLX_TEXTURE_FORMAT_NONE_EXT
:
2223 case GLX_TEXTURE_FORMAT_RGB_EXT
:
2224 case GLX_TEXTURE_FORMAT_RGBA_EXT
:
2232 case GLX_TEXTURE_TARGET_EXT
:
2235 case GLX_TEXTURE_1D_EXT
:
2236 case GLX_TEXTURE_2D_EXT
:
2237 case GLX_TEXTURE_RECTANGLE_EXT
:
2245 case GLX_MIPMAP_TEXTURE_EXT
:
2256 if (format
== GLX_TEXTURE_FORMAT_RGB_EXT
) {
2257 if (get_config(v
, GLX_BIND_TO_TEXTURE_RGB_EXT
,
2258 &value
, GL_TRUE
) != Success
2260 return 0; /* error! */
2263 else if (format
== GLX_TEXTURE_FORMAT_RGBA_EXT
) {
2264 if (get_config(v
, GLX_BIND_TO_TEXTURE_RGBA_EXT
,
2265 &value
, GL_TRUE
) != Success
2267 return 0; /* error! */
2271 if (get_config(v
, GLX_BIND_TO_MIPMAP_TEXTURE_EXT
,
2272 &value
, GL_TRUE
) != Success
2274 return 0; /* error! */
2277 if (target
== GLX_TEXTURE_1D_EXT
) {
2278 if (get_config(v
, GLX_BIND_TO_TEXTURE_TARGETS_EXT
,
2279 &value
, GL_TRUE
) != Success
2280 || (value
& GLX_TEXTURE_1D_BIT_EXT
) == 0) {
2281 return 0; /* error! */
2284 else if (target
== GLX_TEXTURE_2D_EXT
) {
2285 if (get_config(v
, GLX_BIND_TO_TEXTURE_TARGETS_EXT
,
2286 &value
, GL_TRUE
) != Success
2287 || (value
& GLX_TEXTURE_2D_BIT_EXT
) == 0) {
2288 return 0; /* error! */
2291 if (target
== GLX_TEXTURE_RECTANGLE_EXT
) {
2292 if (get_config(v
, GLX_BIND_TO_TEXTURE_TARGETS_EXT
,
2293 &value
, GL_TRUE
) != Success
2294 || (value
& GLX_TEXTURE_RECTANGLE_BIT_EXT
) == 0) {
2295 return 0; /* error! */
2299 if (format
|| target
|| mipmap
) {
2300 /* texture from pixmap */
2301 b
= XMesaCreatePixmapTextureBuffer(v
, pixmap
, 0, format
, target
, mipmap
);
2304 b
= XMesaCreatePixmapBuffer( v
, pixmap
, 0 );
2315 Fake_glXDestroyPixmap( Display
*dpy
, GLXPixmap pixmap
)
2317 XMesaBuffer b
= XMesaFindBuffer(dpy
, (XMesaDrawable
)pixmap
);
2319 XMesaDestroyBuffer(b
);
2320 /* don't destroy X pixmap */
2325 Fake_glXCreatePbuffer( Display
*dpy
, GLXFBConfig config
,
2326 const int *attribList
)
2328 XMesaVisual xmvis
= (XMesaVisual
) config
;
2331 int width
= 0, height
= 0;
2332 GLboolean useLargest
= GL_FALSE
, preserveContents
= GL_FALSE
;
2336 for (attrib
= attribList
; *attrib
; attrib
++) {
2338 case GLX_PBUFFER_WIDTH
:
2342 case GLX_PBUFFER_HEIGHT
:
2346 case GLX_PRESERVED_CONTENTS
:
2348 preserveContents
= *attrib
; /* ignored */
2350 case GLX_LARGEST_PBUFFER
:
2352 useLargest
= *attrib
; /* ignored */
2359 /* not used at this time */
2361 (void) preserveContents
;
2363 if (width
== 0 || height
== 0)
2366 xmbuf
= XMesaCreatePBuffer( xmvis
, 0, width
, height
);
2367 /* A GLXPbuffer handle must be an X Drawable because that's what
2368 * glXMakeCurrent takes.
2371 return (GLXPbuffer
) xmbuf
->drawable
;
2378 Fake_glXDestroyPbuffer( Display
*dpy
, GLXPbuffer pbuf
)
2380 XMesaBuffer b
= XMesaFindBuffer(dpy
, pbuf
);
2382 XMesaDestroyBuffer(b
);
2388 Fake_glXQueryDrawable( Display
*dpy
, GLXDrawable draw
, int attribute
,
2389 unsigned int *value
)
2391 XMesaBuffer xmbuf
= XMesaFindBuffer(dpy
, draw
);
2395 switch (attribute
) {
2397 *value
= xmesa_buffer_width(xmbuf
);
2400 *value
= xmesa_buffer_width(xmbuf
);
2402 case GLX_PRESERVED_CONTENTS
:
2405 case GLX_LARGEST_PBUFFER
:
2406 *value
= xmesa_buffer_width(xmbuf
) * xmesa_buffer_height(xmbuf
);
2408 case GLX_FBCONFIG_ID
:
2409 *value
= xmbuf
->xm_visual
->visinfo
->visualid
;
2411 #ifdef GLX_EXT_texture_from_pixmap
2412 case GLX_TEXTURE_FORMAT_EXT
:
2413 *value
= xmbuf
->TextureFormat
;
2415 case GLX_TEXTURE_TARGET_EXT
:
2416 *value
= xmbuf
->TextureTarget
;
2418 case GLX_MIPMAP_TEXTURE_EXT
:
2419 *value
= xmbuf
->TextureMipmap
;
2424 return; /* raise BadValue error */
2430 Fake_glXCreateNewContext( Display
*dpy
, GLXFBConfig config
,
2431 int renderType
, GLXContext shareList
, Bool direct
)
2433 struct fake_glx_context
*glxCtx
;
2434 struct fake_glx_context
*shareCtx
= (struct fake_glx_context
*) shareList
;
2435 XMesaVisual xmvis
= (XMesaVisual
) config
;
2437 if (!dpy
|| !config
||
2438 (renderType
!= GLX_RGBA_TYPE
&& renderType
!= GLX_COLOR_INDEX_TYPE
))
2441 glxCtx
= CALLOC_STRUCT(fake_glx_context
);
2445 /* deallocate unused windows/buffers */
2446 XMesaGarbageCollect();
2448 glxCtx
->xmesaContext
= XMesaCreateContext(xmvis
,
2449 shareCtx
? shareCtx
->xmesaContext
: NULL
);
2450 if (!glxCtx
->xmesaContext
) {
2455 glxCtx
->glxContext
.isDirect
= GL_FALSE
;
2456 glxCtx
->glxContext
.currentDpy
= dpy
;
2457 glxCtx
->glxContext
.xid
= (XID
) glxCtx
; /* self pointer */
2459 assert((void *) glxCtx
== (void *) &(glxCtx
->glxContext
));
2461 return (GLXContext
) glxCtx
;
2466 Fake_glXQueryContext( Display
*dpy
, GLXContext ctx
, int attribute
, int *value
)
2468 struct fake_glx_context
*glxCtx
= (struct fake_glx_context
*) ctx
;
2469 XMesaContext xmctx
= glxCtx
->xmesaContext
;
2474 switch (attribute
) {
2475 case GLX_FBCONFIG_ID
:
2476 *value
= xmctx
->xm_visual
->visinfo
->visualid
;
2478 case GLX_RENDER_TYPE
:
2479 if (xmctx
->xm_visual
->mesa_visual
.rgbMode
)
2480 *value
= GLX_RGBA_BIT
;
2482 *value
= GLX_COLOR_INDEX_BIT
;
2488 return GLX_BAD_ATTRIBUTE
;
2495 Fake_glXSelectEvent( Display
*dpy
, GLXDrawable drawable
, unsigned long mask
)
2497 XMesaBuffer xmbuf
= XMesaFindBuffer(dpy
, drawable
);
2499 xmbuf
->selectedEvents
= mask
;
2504 Fake_glXGetSelectedEvent( Display
*dpy
, GLXDrawable drawable
,
2505 unsigned long *mask
)
2507 XMesaBuffer xmbuf
= XMesaFindBuffer(dpy
, drawable
);
2509 *mask
= xmbuf
->selectedEvents
;
2516 /*** GLX_SGI_swap_control ***/
2519 Fake_glXSwapIntervalSGI(int interval
)
2527 /*** GLX_SGI_video_sync ***/
2529 static unsigned int FrameCounter
= 0;
2532 Fake_glXGetVideoSyncSGI(unsigned int *count
)
2534 /* this is a bogus implementation */
2535 *count
= FrameCounter
++;
2540 Fake_glXWaitVideoSyncSGI(int divisor
, int remainder
, unsigned int *count
)
2542 if (divisor
<= 0 || remainder
< 0)
2543 return GLX_BAD_VALUE
;
2544 /* this is a bogus implementation */
2546 while (FrameCounter
% divisor
!= remainder
)
2548 *count
= FrameCounter
;
2554 /*** GLX_SGI_make_current_read ***/
2557 Fake_glXMakeCurrentReadSGI(Display
*dpy
, GLXDrawable draw
, GLXDrawable read
, GLXContext ctx
)
2559 return Fake_glXMakeContextCurrent( dpy
, draw
, read
, ctx
);
2564 Fake_glXGetCurrentReadDrawableSGI(void)
2571 /*** GLX_SGIX_video_source ***/
2574 static GLXVideoSourceSGIX
2575 Fake_glXCreateGLXVideoSourceSGIX(Display
*dpy
, int screen
, VLServer server
, VLPath path
, int nodeClass
, VLNode drainNode
)
2587 Fake_glXDestroyGLXVideoSourceSGIX(Display
*dpy
, GLXVideoSourceSGIX src
)
2596 /*** GLX_EXT_import_context ***/
2599 Fake_glXFreeContextEXT(Display
*dpy
, GLXContext context
)
2606 Fake_glXGetContextIDEXT(const GLXContext context
)
2613 Fake_glXImportContextEXT(Display
*dpy
, GLXContextID contextID
)
2621 Fake_glXQueryContextInfoEXT(Display
*dpy
, GLXContext context
, int attribute
, int *value
)
2632 /*** GLX_SGIX_fbconfig ***/
2635 Fake_glXGetFBConfigAttribSGIX(Display
*dpy
, GLXFBConfigSGIX config
, int attribute
, int *value
)
2637 return Fake_glXGetFBConfigAttrib(dpy
, config
, attribute
, value
);
2640 static GLXFBConfigSGIX
*
2641 Fake_glXChooseFBConfigSGIX(Display
*dpy
, int screen
, int *attrib_list
, int *nelements
)
2643 return (GLXFBConfig
*) Fake_glXChooseFBConfig(dpy
, screen
, attrib_list
, nelements
);
2648 Fake_glXCreateGLXPixmapWithConfigSGIX(Display
*dpy
, GLXFBConfigSGIX config
, Pixmap pixmap
)
2650 XMesaVisual xmvis
= (XMesaVisual
) config
;
2651 XMesaBuffer xmbuf
= XMesaCreatePixmapBuffer(xmvis
, pixmap
, 0);
2652 return xmbuf
->drawable
; /* need to return an X ID */
2657 Fake_glXCreateContextWithConfigSGIX(Display
*dpy
, GLXFBConfigSGIX config
, int render_type
, GLXContext share_list
, Bool direct
)
2659 XMesaVisual xmvis
= (XMesaVisual
) config
;
2660 struct fake_glx_context
*glxCtx
;
2661 struct fake_glx_context
*shareCtx
= (struct fake_glx_context
*) share_list
;
2663 glxCtx
= CALLOC_STRUCT(fake_glx_context
);
2667 /* deallocate unused windows/buffers */
2668 XMesaGarbageCollect();
2670 glxCtx
->xmesaContext
= XMesaCreateContext(xmvis
,
2671 shareCtx
? shareCtx
->xmesaContext
: NULL
);
2672 if (!glxCtx
->xmesaContext
) {
2677 glxCtx
->glxContext
.isDirect
= GL_FALSE
;
2678 glxCtx
->glxContext
.currentDpy
= dpy
;
2679 glxCtx
->glxContext
.xid
= (XID
) glxCtx
; /* self pointer */
2681 assert((void *) glxCtx
== (void *) &(glxCtx
->glxContext
));
2683 return (GLXContext
) glxCtx
;
2687 static XVisualInfo
*
2688 Fake_glXGetVisualFromFBConfigSGIX(Display
*dpy
, GLXFBConfigSGIX config
)
2690 return Fake_glXGetVisualFromFBConfig(dpy
, config
);
2694 static GLXFBConfigSGIX
2695 Fake_glXGetFBConfigFromVisualSGIX(Display
*dpy
, XVisualInfo
*vis
)
2697 XMesaVisual xmvis
= find_glx_visual(dpy
, vis
);
2699 /* This visual wasn't found with glXChooseVisual() */
2700 xmvis
= create_glx_visual(dpy
, vis
);
2703 return (GLXFBConfigSGIX
) xmvis
;
2708 /*** GLX_SGIX_pbuffer ***/
2710 static GLXPbufferSGIX
2711 Fake_glXCreateGLXPbufferSGIX(Display
*dpy
, GLXFBConfigSGIX config
,
2712 unsigned int width
, unsigned int height
,
2715 XMesaVisual xmvis
= (XMesaVisual
) config
;
2718 GLboolean useLargest
= GL_FALSE
, preserveContents
= GL_FALSE
;
2722 for (attrib
= attribList
; attrib
&& *attrib
; attrib
++) {
2724 case GLX_PRESERVED_CONTENTS_SGIX
:
2726 preserveContents
= *attrib
; /* ignored */
2728 case GLX_LARGEST_PBUFFER_SGIX
:
2730 useLargest
= *attrib
; /* ignored */
2737 /* not used at this time */
2739 (void) preserveContents
;
2741 xmbuf
= XMesaCreatePBuffer( xmvis
, 0, width
, height
);
2742 /* A GLXPbuffer handle must be an X Drawable because that's what
2743 * glXMakeCurrent takes.
2745 return (GLXPbuffer
) xmbuf
->drawable
;
2750 Fake_glXDestroyGLXPbufferSGIX(Display
*dpy
, GLXPbufferSGIX pbuf
)
2752 XMesaBuffer xmbuf
= XMesaFindBuffer(dpy
, pbuf
);
2754 XMesaDestroyBuffer(xmbuf
);
2760 Fake_glXQueryGLXPbufferSGIX(Display
*dpy
, GLXPbufferSGIX pbuf
, int attribute
, unsigned int *value
)
2762 const XMesaBuffer xmbuf
= XMesaFindBuffer(dpy
, pbuf
);
2765 /* Generate GLXBadPbufferSGIX for bad pbuffer */
2769 switch (attribute
) {
2770 case GLX_PRESERVED_CONTENTS_SGIX
:
2773 case GLX_LARGEST_PBUFFER_SGIX
:
2774 *value
= xmesa_buffer_width(xmbuf
) * xmesa_buffer_height(xmbuf
);
2776 case GLX_WIDTH_SGIX
:
2777 *value
= xmesa_buffer_width(xmbuf
);
2779 case GLX_HEIGHT_SGIX
:
2780 *value
= xmesa_buffer_height(xmbuf
);
2782 case GLX_EVENT_MASK_SGIX
:
2783 *value
= 0; /* XXX might be wrong */
2793 Fake_glXSelectEventSGIX(Display
*dpy
, GLXDrawable drawable
, unsigned long mask
)
2795 XMesaBuffer xmbuf
= XMesaFindBuffer(dpy
, drawable
);
2797 /* Note: we'll never generate clobber events */
2798 xmbuf
->selectedEvents
= mask
;
2804 Fake_glXGetSelectedEventSGIX(Display
*dpy
, GLXDrawable drawable
, unsigned long *mask
)
2806 XMesaBuffer xmbuf
= XMesaFindBuffer(dpy
, drawable
);
2808 *mask
= xmbuf
->selectedEvents
;
2817 /*** GLX_SGI_cushion ***/
2820 Fake_glXCushionSGI(Display
*dpy
, Window win
, float cushion
)
2829 /*** GLX_SGIX_video_resize ***/
2832 Fake_glXBindChannelToWindowSGIX(Display
*dpy
, int screen
, int channel
, Window window
)
2842 Fake_glXChannelRectSGIX(Display
*dpy
, int screen
, int channel
, int x
, int y
, int w
, int h
)
2855 Fake_glXQueryChannelRectSGIX(Display
*dpy
, int screen
, int channel
, int *x
, int *y
, int *w
, int *h
)
2868 Fake_glXQueryChannelDeltasSGIX(Display
*dpy
, int screen
, int channel
, int *dx
, int *dy
, int *dw
, int *dh
)
2881 Fake_glXChannelRectSyncSGIX(Display
*dpy
, int screen
, int channel
, GLenum synctype
)
2892 /*** GLX_SGIX_dmbuffer **/
2894 #if defined(_DM_BUFFER_H_)
2896 Fake_glXAssociateDMPbufferSGIX(Display
*dpy
, GLXPbufferSGIX pbuffer
, DMparams
*params
, DMbuffer dmbuffer
)
2907 /*** GLX_SGIX_swap_group ***/
2910 Fake_glXJoinSwapGroupSGIX(Display
*dpy
, GLXDrawable drawable
, GLXDrawable member
)
2919 /*** GLX_SGIX_swap_barrier ***/
2922 Fake_glXBindSwapBarrierSGIX(Display
*dpy
, GLXDrawable drawable
, int barrier
)
2930 Fake_glXQueryMaxSwapBarriersSGIX(Display
*dpy
, int screen
, int *max
)
2940 /*** GLX_SUN_get_transparent_index ***/
2943 Fake_glXGetTransparentIndexSUN(Display
*dpy
, Window overlay
, Window underlay
, long *pTransparent
)
2948 (void) pTransparent
;
2954 /*** GLX_MESA_release_buffers ***/
2957 * Release the depth, stencil, accum buffers attached to a GLXDrawable
2958 * (a window or pixmap) prior to destroying the GLXDrawable.
2961 Fake_glXReleaseBuffersMESA( Display
*dpy
, GLXDrawable d
)
2963 XMesaBuffer b
= XMesaFindBuffer(dpy
, d
);
2965 XMesaDestroyBuffer(b
);
2973 /*** GLX_MESA_set_3dfx_mode ***/
2976 Fake_glXSet3DfxModeMESA( int mode
)
2978 return XMesaSetFXmode( mode
);
2983 /*** GLX_NV_vertex_array range ***/
2985 Fake_glXAllocateMemoryNV( GLsizei size
,
2986 GLfloat readFrequency
,
2987 GLfloat writeFrequency
,
2991 (void) readFrequency
;
2992 (void) writeFrequency
;
2999 Fake_glXFreeMemoryNV( GLvoid
*pointer
)
3005 /*** GLX_MESA_agp_offset ***/
3008 Fake_glXGetAGPOffsetMESA( const GLvoid
*pointer
)
3015 /*** GLX_EXT_texture_from_pixmap ***/
3018 Fake_glXBindTexImageEXT(Display
*dpy
, GLXDrawable drawable
, int buffer
,
3019 const int *attrib_list
)
3021 XMesaBuffer b
= XMesaFindBuffer(dpy
, drawable
);
3023 XMesaBindTexImage(dpy
, b
, buffer
, attrib_list
);
3027 Fake_glXReleaseTexImageEXT(Display
*dpy
, GLXDrawable drawable
, int buffer
)
3029 XMesaBuffer b
= XMesaFindBuffer(dpy
, drawable
);
3031 XMesaReleaseTexImage(dpy
, b
, buffer
);
3035 /* silence warning */
3036 extern struct _glxapi_table
*_mesa_GetGLXDispatchTable(void);
3040 * Create a new GLX API dispatch table with its function pointers
3041 * initialized to point to Mesa's "fake" GLX API functions.
3042 * Note: there's a similar function (_real_GetGLXDispatchTable) that
3043 * returns a new dispatch table with all pointers initalized to point
3044 * to "real" GLX functions (which understand GLX wire protocol, etc).
3046 struct _glxapi_table
*
3047 _mesa_GetGLXDispatchTable(void)
3049 static struct _glxapi_table glx
;
3051 /* be sure our dispatch table size <= libGL's table */
3053 GLuint size
= sizeof(struct _glxapi_table
) / sizeof(void *);
3055 assert(_glxapi_get_dispatch_table_size() >= size
);
3058 /* initialize the whole table to no-ops */
3059 _glxapi_set_no_op_table(&glx
);
3061 /* now initialize the table with the functions I implement */
3062 glx
.ChooseVisual
= Fake_glXChooseVisual
;
3063 glx
.CopyContext
= Fake_glXCopyContext
;
3064 glx
.CreateContext
= Fake_glXCreateContext
;
3065 glx
.CreateGLXPixmap
= Fake_glXCreateGLXPixmap
;
3066 glx
.DestroyContext
= Fake_glXDestroyContext
;
3067 glx
.DestroyGLXPixmap
= Fake_glXDestroyGLXPixmap
;
3068 glx
.GetConfig
= Fake_glXGetConfig
;
3069 /*glx.GetCurrentContext = Fake_glXGetCurrentContext;*/
3070 /*glx.GetCurrentDrawable = Fake_glXGetCurrentDrawable;*/
3071 glx
.IsDirect
= Fake_glXIsDirect
;
3072 glx
.MakeCurrent
= Fake_glXMakeCurrent
;
3073 glx
.QueryExtension
= Fake_glXQueryExtension
;
3074 glx
.QueryVersion
= Fake_glXQueryVersion
;
3075 glx
.SwapBuffers
= Fake_glXSwapBuffers
;
3076 glx
.UseXFont
= Fake_glXUseXFont
;
3077 glx
.WaitGL
= Fake_glXWaitGL
;
3078 glx
.WaitX
= Fake_glXWaitX
;
3080 /*** GLX_VERSION_1_1 ***/
3081 glx
.GetClientString
= Fake_glXGetClientString
;
3082 glx
.QueryExtensionsString
= Fake_glXQueryExtensionsString
;
3083 glx
.QueryServerString
= Fake_glXQueryServerString
;
3085 /*** GLX_VERSION_1_2 ***/
3086 /*glx.GetCurrentDisplay = Fake_glXGetCurrentDisplay;*/
3088 /*** GLX_VERSION_1_3 ***/
3089 glx
.ChooseFBConfig
= Fake_glXChooseFBConfig
;
3090 glx
.CreateNewContext
= Fake_glXCreateNewContext
;
3091 glx
.CreatePbuffer
= Fake_glXCreatePbuffer
;
3092 glx
.CreatePixmap
= Fake_glXCreatePixmap
;
3093 glx
.CreateWindow
= Fake_glXCreateWindow
;
3094 glx
.DestroyPbuffer
= Fake_glXDestroyPbuffer
;
3095 glx
.DestroyPixmap
= Fake_glXDestroyPixmap
;
3096 glx
.DestroyWindow
= Fake_glXDestroyWindow
;
3097 /*glx.GetCurrentReadDrawable = Fake_glXGetCurrentReadDrawable;*/
3098 glx
.GetFBConfigAttrib
= Fake_glXGetFBConfigAttrib
;
3099 glx
.GetFBConfigs
= Fake_glXGetFBConfigs
;
3100 glx
.GetSelectedEvent
= Fake_glXGetSelectedEvent
;
3101 glx
.GetVisualFromFBConfig
= Fake_glXGetVisualFromFBConfig
;
3102 glx
.MakeContextCurrent
= Fake_glXMakeContextCurrent
;
3103 glx
.QueryContext
= Fake_glXQueryContext
;
3104 glx
.QueryDrawable
= Fake_glXQueryDrawable
;
3105 glx
.SelectEvent
= Fake_glXSelectEvent
;
3107 /*** GLX_SGI_swap_control ***/
3108 glx
.SwapIntervalSGI
= Fake_glXSwapIntervalSGI
;
3110 /*** GLX_SGI_video_sync ***/
3111 glx
.GetVideoSyncSGI
= Fake_glXGetVideoSyncSGI
;
3112 glx
.WaitVideoSyncSGI
= Fake_glXWaitVideoSyncSGI
;
3114 /*** GLX_SGI_make_current_read ***/
3115 glx
.MakeCurrentReadSGI
= Fake_glXMakeCurrentReadSGI
;
3116 /*glx.GetCurrentReadDrawableSGI = Fake_glXGetCurrentReadDrawableSGI;*/
3118 /*** GLX_SGIX_video_source ***/
3120 glx
.CreateGLXVideoSourceSGIX
= Fake_glXCreateGLXVideoSourceSGIX
;
3121 glx
.DestroyGLXVideoSourceSGIX
= Fake_glXDestroyGLXVideoSourceSGIX
;
3124 /*** GLX_EXT_import_context ***/
3125 glx
.FreeContextEXT
= Fake_glXFreeContextEXT
;
3126 glx
.GetContextIDEXT
= Fake_glXGetContextIDEXT
;
3127 /*glx.GetCurrentDisplayEXT = Fake_glXGetCurrentDisplayEXT;*/
3128 glx
.ImportContextEXT
= Fake_glXImportContextEXT
;
3129 glx
.QueryContextInfoEXT
= Fake_glXQueryContextInfoEXT
;
3131 /*** GLX_SGIX_fbconfig ***/
3132 glx
.GetFBConfigAttribSGIX
= Fake_glXGetFBConfigAttribSGIX
;
3133 glx
.ChooseFBConfigSGIX
= Fake_glXChooseFBConfigSGIX
;
3134 glx
.CreateGLXPixmapWithConfigSGIX
= Fake_glXCreateGLXPixmapWithConfigSGIX
;
3135 glx
.CreateContextWithConfigSGIX
= Fake_glXCreateContextWithConfigSGIX
;
3136 glx
.GetVisualFromFBConfigSGIX
= Fake_glXGetVisualFromFBConfigSGIX
;
3137 glx
.GetFBConfigFromVisualSGIX
= Fake_glXGetFBConfigFromVisualSGIX
;
3139 /*** GLX_SGIX_pbuffer ***/
3140 glx
.CreateGLXPbufferSGIX
= Fake_glXCreateGLXPbufferSGIX
;
3141 glx
.DestroyGLXPbufferSGIX
= Fake_glXDestroyGLXPbufferSGIX
;
3142 glx
.QueryGLXPbufferSGIX
= Fake_glXQueryGLXPbufferSGIX
;
3143 glx
.SelectEventSGIX
= Fake_glXSelectEventSGIX
;
3144 glx
.GetSelectedEventSGIX
= Fake_glXGetSelectedEventSGIX
;
3146 /*** GLX_SGI_cushion ***/
3147 glx
.CushionSGI
= Fake_glXCushionSGI
;
3149 /*** GLX_SGIX_video_resize ***/
3150 glx
.BindChannelToWindowSGIX
= Fake_glXBindChannelToWindowSGIX
;
3151 glx
.ChannelRectSGIX
= Fake_glXChannelRectSGIX
;
3152 glx
.QueryChannelRectSGIX
= Fake_glXQueryChannelRectSGIX
;
3153 glx
.QueryChannelDeltasSGIX
= Fake_glXQueryChannelDeltasSGIX
;
3154 glx
.ChannelRectSyncSGIX
= Fake_glXChannelRectSyncSGIX
;
3156 /*** GLX_SGIX_dmbuffer **/
3157 #if defined(_DM_BUFFER_H_)
3158 glx
.AssociateDMPbufferSGIX
= NULL
;
3161 /*** GLX_SGIX_swap_group ***/
3162 glx
.JoinSwapGroupSGIX
= Fake_glXJoinSwapGroupSGIX
;
3164 /*** GLX_SGIX_swap_barrier ***/
3165 glx
.BindSwapBarrierSGIX
= Fake_glXBindSwapBarrierSGIX
;
3166 glx
.QueryMaxSwapBarriersSGIX
= Fake_glXQueryMaxSwapBarriersSGIX
;
3168 /*** GLX_SUN_get_transparent_index ***/
3169 glx
.GetTransparentIndexSUN
= Fake_glXGetTransparentIndexSUN
;
3171 /*** GLX_MESA_copy_sub_buffer ***/
3172 glx
.CopySubBufferMESA
= Fake_glXCopySubBufferMESA
;
3174 /*** GLX_MESA_release_buffers ***/
3175 glx
.ReleaseBuffersMESA
= Fake_glXReleaseBuffersMESA
;
3177 /*** GLX_MESA_pixmap_colormap ***/
3178 glx
.CreateGLXPixmapMESA
= Fake_glXCreateGLXPixmapMESA
;
3180 /*** GLX_MESA_set_3dfx_mode ***/
3181 glx
.Set3DfxModeMESA
= Fake_glXSet3DfxModeMESA
;
3183 /*** GLX_NV_vertex_array_range ***/
3184 glx
.AllocateMemoryNV
= Fake_glXAllocateMemoryNV
;
3185 glx
.FreeMemoryNV
= Fake_glXFreeMemoryNV
;
3187 /*** GLX_MESA_agp_offset ***/
3188 glx
.GetAGPOffsetMESA
= Fake_glXGetAGPOffsetMESA
;
3190 /*** GLX_EXT_texture_from_pixmap ***/
3191 glx
.BindTexImageEXT
= Fake_glXBindTexImageEXT
;
3192 glx
.ReleaseTexImageEXT
= Fake_glXReleaseTexImageEXT
;